1. 
   Risorial
   Ri·so'ri·al adjective [ Latin ridere , risum , to laugh.] Pertaining to, or producing, laughter; as, the risorial muscles.
   Found op http://www.encyclo.co.uk/webster/R/85
   
   
2. 
   risorial
   Pertaining to, or producing, laughter; as, the risorial muscles. ... Origin: L. Ridere, risum, to laugh. ... Source: Websters Dictionary ... (01 Mar 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?risorial
   
   
3. 
   Risorial
   • (a.) Pertaining to, or producing, laughter; as, the risorial muscles.
   Found op http://thinkexist.com/dictionary/meaning/risorial/
   
   

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